Display screen with an animated graphical user interface



3.1 is a front view of a first image in a sequence of a display screen with an animated graphical user interface showing our new design;

3.2 is a front view of a second image thereof

3.3 is a front view of a third image thereof; and

3.4 is a front view of a fourth image thereof.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 3.1 to 3.4. The process or period in which an image transitions to another image forms no part of the claimed design.

The uneven length broken line rectangle illustrating the display screen, as well as all uneven and even length broken lines within the display screen illustrating portions of the graphical user interface, form no part of the claimed design. 

CLAIM The ornamental design for a display screen with an animated graphical user interface, as shown and described. 